If you do and you do not reply to this post, then you are already DEAD!

Seriously, you will fall into a slumber like precious Snow White, and no one will kiss you, therefore you will sleep quietly alone in the darkness cramped in a box. Make sure to strap on your Buzz-Lightyear and Woody for company just in case.

"Feel weird" how? High doses of ibuprofen cause stomach upset, dizziness, headache.
1600mg on a single occasion is very unlikely to cause any serious problems, but if you are overly concerned, call Poison Control.

never mind about you feeling wierd, it tends to cut down on blood flow to your kidneys.

Keep up the negative behaviour with drugs/alcohol and you will end up a walking human wreck, needing a kidney or liver transplants but with doctors not wanting to waste scarce resources on someone who does not value himself anyway.